This is a note to let you know that I've just added the patch titled
USB: cp210x: allow more baud rates above 1Mbaud
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-cp210x-allow-more-baud-rates-above-1mbaud.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From d1620ca9e7bb0030068c3b45b653defde8839dac Mon Sep 17 00:00:00 2001
From: Johan Hovold <[email protected]>
Date: Mon, 16 Jan 2012 00:36:53 +0100
Subject: USB: cp210x: allow more baud rates above 1Mbaud
From: Johan Hovold <[email protected]>
commit d1620ca9e7bb0030068c3b45b653defde8839dac upstream.
Allow more baud rates to be set in [1M,2M] baud.
Signed-off-by: Johan Hovold <[email protected]>
Cc: Preston Fick <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/serial/cp210x.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -388,10 +388,10 @@ static unsigned int cp210x_quantise_baud
else if (baud <= 491520) baud = 460800;
else if (baud <= 567138) baud = 500000;
else if (baud <= 670254) baud = 576000;
- else if (baud <= 1053257) baud = 921600;
- else if (baud <= 1474560) baud = 1228800;
- else if (baud <= 2457600) baud = 1843200;
- else baud = 3686400;
+ else if (baud < 1000000)
+ baud = 921600;
+ else if (baud > 2000000)
+ baud = 2000000;
return baud;
}
@@ -611,7 +611,8 @@ static void cp210x_change_speed(struct t
baud = tty->termios->c_ospeed;
- /* This maps the requested rate to a rate valid on cp2102 or cp2103.
+ /* This maps the requested rate to a rate valid on cp2102 or cp2103,
+ * or to an arbitrary rate in [1M,2M].
*
* NOTE: B0 is not implemented.
*/
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/usb-cp210x-call-generic-open-last-in-open.patch
queue-3.0/usb-cp210x-fix-cp2104-baudrate-usage.patch
queue-3.0/usb-cp210x-fix-up-set_termios-variables.patch
queue-3.0/usb-cp210x-do-not-map-baud-rates-to-b0.patch
queue-3.0/usb-cp210x-allow-more-baud-rates-above-1mbaud.patch
queue-3.0/usb-cp210x-initialise-baud-rate-at-open.patch
queue-3.0/usb-cp210x-clean-up-refactor-and-document-speed-handling.patch
queue-3.0/usb-ftdi_sio-fix-tiocsserial-baud_base-handling.patch
queue-3.0/usb-ftdi_sio-fix-initial-baud-rate.patch
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